# Udan Live vs BLE Diagnostic Tool

The clearest difference is iOS requirement: Udan Live at 12.0 against BLE Diagnostic Tool's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Udan Live ships an update every 4 weeks, BLE Diagnostic Tool every 5 weeks. The most recent releases landed on September 15, 2026 and August 20, 2026 respectively.

## The numbers

| Metric | Udan Live | BLE Diagnostic Tool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ble-diagnostic-tool/id6466607793/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 5 weeks |
| Monetization | — | Free |
| Size | 41 MB | 10 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Anhui Udan Technology Co., Ltd.](https://appshunter.io/developer/1593792520) | [健 常](https://appshunter.io/developer/1698085980) |

## What reviewers say

### Udan Live

[App page](https://appshunter.io/ios/app/udan-live/id1605693458)

**Features:** macOS Compatibility

**In-app purchases:** none


### BLE Diagnostic Tool

[App page](https://appshunter.io/ios/app/ble-diagnostic-tool/id6466607793)

Connect to devices via Bluetooth to retrieve and display diagnostic data. Analyze information obtained through the protocol to troubleshoot and understand device status.

**Highlights:** Bluetooth connectivity, Data retrieval, Protocol analysis, Device diagnostics, Data display

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Udan Live free?

Udan Live is free to download, with no in-app purchases.

### Is BLE Diagnostic Tool free?

BLE Diagnostic Tool is free to download, with no in-app purchases.

### Do Udan Live or BLE Diagnostic Tool have ads?

Neither Udan Live nor BLE Diagnostic Tool shows ads.

### Which is updated more often, Udan Live or BLE Diagnostic Tool?

Udan Live ships an update every 4 weeks, and BLE Diagnostic Tool every 5 weeks. Most recently, Udan Live was updated on September 15, 2026 and BLE Diagnostic Tool on August 20, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*